baber/WOPTO huggingface dataset:
Patent GB-1381840-A (GB)
Title: Tetrazole derivatives having plant growth regulation properties
IPC: C07D401/04
Filed: 1972-02-28
Abstract: 1381840 Tetrazoles IMPERIAL CHEMICAL INDUSTRIES Ltd 26 Jan 1973 [28 Feb 1972] 52535/73 Divided out of 1353699 Heading C2C The invention comprises compounds of the general formula wherein X=-CH(CH 3 )CO 2 H, -CH 2 CH 2 CO - C 2 H 5 , -COOC 2 H 5 , -CH 2 COO.CH 2 CH 2 CH 3 , -CH 2 COOC 4 H 9 , -CH(CH 3 )CH 2 COOCH 3 , -CH 2 CH 2 OH, -CH 2 CN, -CH 2 CH 2 CH 2 COO-   C 2 H 5 , -CH 2 COO-H 3 #NCH 2 CH 2 OH, -CH 2 -   COO-H#N(C 2 H 5 ) 3 , -CH 2 CONHC 12 H 25  or -CH 2 CON(C 2 H 5 ) 2  and Y=p-Cl.C 6 H 4  : X= -CH 2 CO 2 C 2 H 5  and Y = o-, m or p-F.C 6 H 4 ; X=-CH 2 CO 2 H and Y =mF.C 6 H 4 -; X = H and Y=o-F.C 6 H 4 , 2,4-dichlorophenyl-, 2-chloropyrido-6-yl- or pCF 3 .C 6 H 4 -. Compounds of general Formula I wherein X=H or carboxyalkyl or a salt, ester, amide or nitrile are prepared by reacting Y-CN, NaN 3  and NH 4 Cl, and subsequently, if desired, reacting with a compound Br(CH 2 ) m -CH(R<SP>1</SP>)CO 2 R 2  to give a compound of formula in which R<SP>1</SP> = H or alkyl, R<SP>2</SP>=C 1-6  hydrocarbon and m = O or integer. Compounds of Formula (I) where X is carbalkoxy ester are prepared by reacting a compound of Formula (I ) where X = H with R<SP>3</SP>OCOCl in which R<SP>3</SP> = alkyl.
Patent GB-1119320-A (GB)
Title: Method of producing nitro-biphenyls and nitro-terphenyls
IPC: C07C205/06
Filed: 1966-11-24
Abstract: Nitrobiphenyls and nitroterphenyls are prepared by reacting, in presence of Cu2O and a solvent, an aromatic nitro-compound with an aromatic compound substituted by (a) a halogen atom and an electron-attracting group in ortho-position thereto, or (b) an iodine atom, both reactants being compounds of the benzene series.  Examples describe the production of 2,21-(and 2,4-)dinitrobiphenyl, and a number of methoxy-substituted nitrobiphenyls and nitroterphenyls.
Patent GB-1268578-A (GB)
Title: Preparation of electrophotographic photoconductive powder material
Inventor: KANEKO HIROYUKI
IPC: G03G5/04
Filed: 1970-11-05
Abstract: 1,268,578. Photoconductive powder. FUJI PHOTO FILM CO. Ltd. 5 Nov., 1970, No. 52740/70. Addition to 1,211,940. Heading HlK. Electrophotographic photoconductive powder is prepared as in parent Specification (see Division Hi) but before or after polymerizing the monomer, the powdered photoconductor is treated with a dye or other colour-forming material under the influence of a reagent and/or heat to form a black, violet, cyan, yellow, magenta or dark blue colour. A list of specific colourforming materials together with reagents or heat treatments is given.
Patent GB-1071469-A (GB)
Title: High voltage winding
IPC: H01F27/34
Filed: 1964-12-30
Abstract: 1,071,469. Transformers and inductors. COMPAGNIE GENERALE D'ELECTRICITE. Dec. 30, 1964 [Jan. 10, 1964], No. 52777/64. Heading HIT. To reduce the voltage oscillations produced by line surges at the H.T. end of a disc coil winding, insulated screening tapes 4 (Fig. 3) are interwound with the turns of two or more disc coils and are. connected together by a conductor 3 and/or by a capacitor 6 through a non-linear resistor or by an auxiliary tape capacitatively coupled with one or both of the screening tapes (Figs. 9 and 10, not shown). The split annular capacitor 6 may be formed of a number of segments or of two sets of spiral or concentric conductors (Figs. 4 and 5, not shown) or concentric coplanar conductors (Figs. 5 and 6, not shown) or by conductive members (15) (Figs. 7 and 8, not shown) or coatings around the disc coils. The disc coils may be wound with two main conductors in parallel.
Patent GB-1444785-A (GB)
IPC: B60S1/60
Filed: 1973-11-14
Abstract: 1444785 Control of D.C. motors; commutators FIAT SpA 14 Nov 1973 [21 Nov 1972] 52903/73 Headings H2J and H2A The motor-driven wiper blade for a headlamp of a motor vehicle is stopped in a desired (vertical) position by providing the commutator 12 of the motor 10 with an insulator 18 cooperating with an additional brush 24 connected to one terminal of a change-over switch 32 whose second terminal is connected to brush 20 and third terminal to a DC supply 28, the arrangement being such that the motor is continuously driven through brushes 20, 22 when the switch 32 is in one position and is drive through brushes 24, 22 and commutator segments 14 when the switch 32 is in its other position, until members 18, 24 engage to open the motor supply circuit, the low inertia of the motor and wiper blade system causing the motor to stop immediately in the position with members 18, 24 aligned. A similar operation may be obtained by using radially-shaped brushes co-operating with the sectors of a commutator formed as a disc, Fig. 2 (not shown).
Patent GB-1198437-A (GB)
Title: Electro Hydraulic Servo Valve
Inventor: TROTT FREDERICK GEORGE
IPC: F15B13/043
Filed: 1966-11-29
Abstract: 1,198,437. Valves. SPERRY RAND Ltd. 26 Oct., 1967 [29 Nov., 1966], No. 53275/66. Heading F2V. [Also in Division G3] An electrohydraulic servo valve has an armature 16 connected by one or more arms 36, 37 to a stationary structure of the valve and one or more distance pieces located between each arm and the stationary structure, each arm being torsionally deformable to allow tilting of the armature. The armature consists of a T- shaped member 13 of soft iron riveted to a base 15 and has a 0À002 inch air gap from a barrier 12. When coils 22, 23 are energized, they modify the action of a permanent magnet 11 on cylindrical polepieces 20<SP>1</SP>, 21<SP>1</SP> to tilt the armature through about five minutes of arc to open one of a pair of passages 25, 26 and close the other. The difference in pressure thus created operates a second valve which applies an opposing feedback torque to the armature through a wire 31. The passages 25, 26 lead both to a fluid supply line and to a fixed orifice and are formed in members 20, 21, having adjustable threaded engagement within the cylindrical polepieces.
Patent GB-1477744-A (GB)
Title: Light-sensitive silver halide materials containing dye  developers
IPC: C09B1/51
Filed: 1974-12-11
Abstract: 1477744 Anthracene derivative FUJI PHOTO FILM CO Ltd 11 Dec 1974 [11 Dec 1973] 53652/74 Heading C2C [Also in Division G2] 1,4 - Bis - (# - hydroquinonyl - α - methylethyl - amino) - 5,8,9,10 - tetrahydroxyanthracene is prepared by heating to 80‹ C. 1,4-bis- (# - hydroquinonyl - α - methylethylamino)- 5,8-dihydroxyanthraquinone, acetic acid, water and dimethylformamide and adding zinc dust.
Patent GB-1282159-A (GB)
Title: Improvements in or relating to voltage stabilised power supply units
IPC: H02M3/337
Filed: 1969-11-03
Abstract: 1282159 Controlling converters MARCONI CO Ltd 3 Nov 1969 [23 Jan 1969] 53723/69 Heading H2F [Also in Division G3] A power supply providing a number of stabilized D.C. voltages of different values comprises a transformer T2 having a plurality of secondary windings each feeding a respective rectifier R1, R2, R3 and output filter Fl, F2, F3 and having a primary winding fed through phaseopposed transistors Tr1, Tr2 controlled by driving pulses produced by an external drive circuit, which is controlled by an error voltage obtained from a comparison of an output voltage of the transformer T2 with a reference voltage, the arrangement being such that the mark/space ratio of the driving pulses is varied to maintain the D.C. voltages constant. A winding AP of transformer T2 supplies a rectifier PR1 to produce a mean value of voltage which is compared with a reference voltage produced by a Zener diode Z1 The resulting error signal from a transistor Tr7 controls the duration of drive pulses produced by an astable generator MAS, the arrangement being such that part of the full square wave produced by this generator is cancelled by a variable duration pulse produced by a monostable circuit MMS forming part of a coincidence circuit. The resulting pulses are alternately reversed by a modulator comprising transistors Tr8, Tr9 and are then amplified by transistors Tr10, Tr11 for application to an impedance matching transformer T3 supplying the bases of transistors Tr1, Tr2. Transformer T2 and transistors Tr1, Tr2 may be supplied with an input D.C. voltage from a transformer/rectifier T1, PR or from a battery B. The external drive circuit is provided with a stabilized supply via terminals a-a and members Tr12, Z2.
Patent GB-1487177-A (GB)
Title: Filter bed wall unit
IPC: E04H7/18
Filed: 1974-11-20
Abstract: 1487177 Wall slabs; filter beds ECC QUARRIES Ltd 20 Nov 1974 [20 Nov 1973] 53808/73 Heading E1B A circular wall for a filter bed or storage pit comprises a plurality of slabs interconnected by bolts 16 passing through apertures in side flanges 3, 4, each end of each bolt being provided with a flexible and resilient washer 18 disposed between the flange and the head or nut of the bolt, the washer being partially loaded during tightening of the bolt. A further square steel washer 17 preferably having indined faces is provided between each resilient washer and its respective nut or bolt head. The outer faces of the flanges which abut in forming a wall comprise two flat surfaces meeting at a peak, where a semi-circular groove which receives a cord of hard rubber, is formed. Reinforcement for the slab comprises a framework of steel rods held together by spring clips and incorporates portions of steel welded mat. The slabs are erected on a concrete foundation provided with a rib, groove or dowels to restrain the lower edges of the slabs.
Patent GB-1142505-A (GB)
Title: Improvements in or relating to cryogenic apparatus
Inventor: DALY EDGAR FRANK
IPC: F25J1/00
Filed: 1965-12-22
Abstract: 1,142,505. Valves. UNICAM INSTRUMENTS Ltd. 19 Dec., 1966 [22 Dec., 1965], No. 54274/65. Heading F2V. [Also in Divisions F1 and F4] The hollow valve members of a rotary valve assembly for use in a refrigeration system (see Division F4) are each provided with four openings which are, as shown at 134 and 135, of arrow shape.
Patent GB-1236785-A (GB)
Title: Control information recording and sensing
IPC: G03B27/08
Filed: 1968-11-18
Abstract: 1,236,785. Sensing control information. BELL & HOWELL CO. Nov.18, 1968 [Nov. 20, 1967], No.54563/68. Headings G2C and G2E. An apparatus which senses light-transmitting control markings on or adjacent sprocket holes of an information carrier such as a film strip, and produces electrical signals in response to said markings, has means which prevent it from also responding to light transmitted through the sprocket holes themselves. In Fig.2 the control markings are in the form of transparent marginal areas 18 between the sprocket holes 22 of the film strip 13. Light from a source 42, which may be either projector lamp itself or a separate lamp provided for the purpose, is received by a photo-cell 37, and an electrical output signal is produced by the cell at terminals 44, 45. As the film is transported, light passes to the cell through both the control markings 18 and the sprocket holes 22. If, as is the case with intermittently moved cinematograph film, the markings 18 remain in the light path several times as long as the sprocket holes, it is possible to separate the signals produced through the markings 18 from the unwanted signals produced through the sprocket holes. This is effected by the integrating circuit 144, which has a time constant such that the output pulses produced by the passage of the sprocket holes through the light path do not build up a sufficient charge at the capacitor 145 to energize the relay 48. The longer signal produced when a marking 18 passes through the light path allows the build up of a sufficient charge to energize the relay, so that a contact 50 is closed which completes a circuit from a battery 52 to a control circuit 51. In the modification of Fig.3, the claw mechanism 56, 58 which engages in a sprocket hole to pull the film downwards one frame carries a contact 64 which, in the position shown, closes and completes the photo-cell circuit. When the film is being pulled down, so that a sprocket hole passes through the light path, the photo-cell circuit is broken, so that no signal is produced at the output terminals 44, 45. In the further modification of Fig.5 (not shown), a sector shutter, which obscures the image frames during the time the film is being pulled down, also obscures the light path through the sprocket holes at the same time.
Patent GB-1202075-A (GB)
Title: Improved electron multiplier
IPC: H01J43/20
Filed: 1967-11-30
Abstract: 1,202,075. Electron multipliers. INTERNATIONAL STANDARD ELECTRIC CORP. 30 Nov., 1967 [5 Dec., 1966], No. 54597/67. Heading H1D. An electron multiplier comprises a number of dynodes 2-7 arranged concentrically, a mesh anode 17 to provide a field-free space in the centre of the tube, and an axial magnetic field from a surrounding solenoid adapted to curve the electron paths as shown so that they describe a pattern resembling a hypocycloid. An electron emitted from any part of one dynode will follow a path of substantially the same length to the next dynode and all electrons travel at the same speed within the anode 17 so that transit time spread is substantially reduced and operation is possible at higher input frequencies. In a practical embodiment (Figs. 3 and 4, not shown) the input is from a photo-cathode 8 and the device is contained within a flat cylindrical envelope; alternatively the input may be derived from an axial electron gun.
Patent GB-1395597-A (GB)
Title: Recovering metal from drosses
IPC: C22B7/04
Filed: 1972-11-27
Abstract: 1395597 Treating dross ISC ALLOYS Ltd 27 Nov 1972 54728/72 Addition to 1258755 Heading C7D Dross formed by the treatment of lead alloys, containing Sb, with Al is contacted with a fluid flux at least mainly composed of sodium aluminium chloride with optional additions of NaCl, to form a flux melt floating on a metallic melt, and introducing chlorine or a reactive chlorine-containing compound (e.g PbCl 2 ) to react with Al or Al alloy present, the flux phase containing sufficient alkali metal chloride to combine with the AlCl 3  so formed. The dross may have been dried (e.g. by the addition of sawdust) prior to treatment.
Patent GB-1221595-A (GB)
Title: Age resistant polymeric compositions and process for their preparation
IPC: C08C19/40
Filed: 1968-11-19
Abstract: 1,221,595. Rubber bound antioxidants. GOODYEAR TIRE & RUBBER CO. 19 Nov., 1968 [15 Dec., 1967], No. 54838/68. Heading C3P. A polymer containing epoxy groups is rendered age resistant by reacting it with either an aromatic amine having at least one functional group reactive with an epoxy group or a phenolic compound containing at least one functional group in addition to the phenolic hydroxy group capable of reaction with an epoxy group. In the examples a butadiene-styrene-glycidyl acrylate copolymer is reacted with p-aminodiphenylamine, N,N<SP>1</SP> - di(1 - methylheptyl) - pphenylene diamine and N-isopropyl-N<SP>1</SP>-phenylp-phenylene diamine and an isoprene-glycidyl acrylate copolymer is reacted with 4-hydroxymethyl-2,6-ditertiary butyl phenol and 2,5-ditertiaryamyl-1,4-hydroquinone. The isopreneglycidyl acrylate polymer is prepared by aqueous emulsion polymerization using AZDN in the presence of a mercaptan.
Patent GB-1498185-A (GB)
Title: Cage arrangements for the maintenance of animals
IPC: A01K7/06
Filed: 1974-12-19
Abstract: 1498185 Battery systems BEHRINGWERKE AG 19 Dec 1974 [19 Dec 1973 (2)] 54897/74 Heading AIM A battery system for small animals such as rabbits comprises a plastics cage 13 having a flange 14 sliding into grooves in a holding frame 18 of a rack 19, and having water supplied through pipes 24 to water nipples 1, fodder supplied by a transport chain 22 in a conveying tube 20 and through tubes 21 to feed bowls 23, and dung removed by a paperbelt conveyor (not shown) which is guided by a support 25. The water supply is controlled by a valve opened by an animal pressing on an exposed pin. A needle-valve-controlled by-pass keeps the nipple permanently moist to encourage an animal to drink. The feed bowl 23 is provided with slots to enable very small particles of food to fall through.
Patent GB-1403190-A (GB)
Title: Castors
IPC: B60B33/00
Filed: 1971-11-26
Abstract: 1403190 Castors ARCHIBALD KENRICK & SONS Ltd 9 Oct 1972 [26 Nov 1971] 54970/71 Heading A4U A castor comprises a hemispherical body 11 with a swivel pin 23, a wheel 13 rotatably mounted by an axle 25 on the body 11, a tyre 19 mounted on the wheel, and a resilient sealing member extending from the tyre 19 to engage the body 11 and prevent ingress of dust or fluff. As shown the sealing member comprises an annular lip portion 20 of a plastics or rubber tyre 19. Alternatively, the sealing member could be formed separately from the tyre.
Patent GB-1364934-A (GB)
Title: Recovery of metal values
IPC: C22B34/34
Filed: 1971-11-26
Abstract: 1364934 Recovery of molybdenum and rhenium values CONTINENTAL ORE CORP 26 Nov 1971 [28 Dec 1970] 54978/71 Heading C1A [Also in Division F4] Mo and Re values are recovered from molybdenite concentrate by heating the concentrate in a preheater 44, and contacting it with an oxygen or mixed oxygen/sulphur dioxide gas stream by passing the concentrate and gas stream countercurrent to each other in a vertically oriented reaction zone 40 at a temperature below that at which molybdic oxide volatilizes, i.e. 550-680 C. The major portion of the rhenium (up to 95%), as rhenium oxide, is volatilized in the reaction zone and passes to the scrubbers, together with a minor proportion (less than 10%) of the molybdenum values. The molybdenum and rhenium values can be recovered from the scrubber solution by conventional means. The majority of the molybdic oxide particles fall by gravity to the rotating hearth 22 where they are roasted and annealed. The molybdic oxide is recovered from the calcine by conventional means.
Patent GB-1110558-A (GB)
Title: Vibratory separators
IPC: B07B1/38
Filed: 1965-12-29
Abstract: 1,110,558. Sifting apparatus, vibrating filte r. SOUTH WESTERN ENGINEERING CO. 29 Dec., 1965 [21 Jan., 1965], No. 55129/65. Headings BID and B2H. In a vibratory separator, an annular screen 14 having a central discharge opening is secured at its outer periphery to a housing 7, 9, 17 and material to be separated is fed via a cntral opening 19 in the housing cover 18 on to a dome member 21 which distributes the material on to the screen adjacent its outer periphery, the housing and screen being vibrated by adjustable eccentric weights 5 driven by a motor 4 to cause movement of the material from the outer periphery of the screen towards the central discharge opening. The oversize component is discharged through the central opening on to a dome member 6 and out through an outlet 8. The component of material passing through the screen falls on to an annular dome member 11 and is discharged through an outlet 10. The housing is mounted on springs 2 arranged in a ring. The screen 14 has an outer rim 15 which is clamped between the housing sections 9 and 17 and an inner rim which is secured to a rim 13 of the dome member 11. The dome member 21 is suspended from the cover 18 by means of vanes 20. The mass and the relative angular position of the eccentric weights may be adjusted to vary the dwell time of the material in the screen. The separator may be used to separate solid material into particles of different sizes and to separate liquid from solid material. Instead of being disposed horizontally the screen 14 may slope towards or away from the central discharge opening. Figs. 3 and 5 (not shown). Central discharge of the oversize component may be controlled by an annular weir (25), Fig 4 (not shown). Two or more screens 14, 28 Fig. 6 may be arranged in coaxial stacked relation, an additional distribution dome 27 being provided between the screens. The screens may have identical mesh, in which case the outlets 10, 30 discharge into a common duct 31. Alternatively, the upper screen may be of finer mesh and separate outlet ducts are provided. In a further arrangement, Fig. 7, an upper coarser screen 14 discharges the oversize material into a central duct 32 which communicates with a lateral duct 33. A lower finer screen 28 discharges the middlings into an annular duct 34 communicating with an outlet duct 35. The fine material passing through the screen 28 is discharged through an outlet 10.
Patent GB-1145455-A (GB)
Title: Improvements in and relating to attachment devices
IPC: G09F3/14
Filed: 1967-12-05
Abstract: 1,145,455. Attaching labels by tags. DENNISON MFG. CO. Ltd. 5 Dec., 1967 [12 Dec., 1966], No. 55316/67. Heading B8F. [Also in Divisions A3 and E2]  An attachment device for labels comprises a filament 1, a head 2 at one end and a cross-bar 3 on the other end, the device being made of thermoplastics and the filament having been stretched to reduce its cross-sectional dimensions and increase its strength by rearranging the molecules of the thermoplastics. The device is made from a blank the filament of which increases in diameter along half its length to a maximum adjacent the head 2. The stretching of the filament ceases at a point 8 adjacent the head.
Patent GB-1373799-A (GB)
Title: Transfer devices
IPC: B65B43/50
Filed: 1971-12-03
Abstract: 1373799 Packaging machines; rotary conveyers FR HESSER MASCHINENFABRIK AG 3 Dec 1971 [4 Dec 1970] 56120/71 Headings B8C and B8A A transfer device for machines for manufacturing, filling and sealing packaging containers 2, by means of which, open containers manufactured on fold mandrels 5, are transferred into conveyer cups 18 of a conveyer arrangement 19 associated with a filling and sealing device of such a machine, comprises a conveyer spider 1 which is rotatable in a step wise manner and which is provided with a number of cups 3 which are open at both ends and which are arranged on the arms of the spider 1 to pivot in planes passing through the axis of rotation of the spider, rods 15 being freely pivotable about a bearing pin 12 which is arranged eccentrically of the axis of rotation of the spider, the free ends of the rods being connected through joints 16 to the cups 3 such that the cups are pivoted between two predetermined pivoted positions during each rotation of the spider. As shown, the spider 1 is driven by a hollow shaft 6 which fixedly supports a pillar 10 carrying the bearing pin 12, the arrangement being such that after each container 2 is received in a cup 3 from the mandrel 5, it is transferred to a second position above the cup 18 into which it is blown by a nozzle 4.